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Alt St. Johann 7-Day Snow Forecast - 31st August 2026

Alt St. Johann Snow Forecast - 7 day

ECMWF IFS
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Updated 31 August 2026 12:48 PDT

7-Day Snow Forecast for Alt St. Johann

1-week from 31 August.

For Forecast detail, see below.

Alt St. Johann 7-Day Snow Forecast Highlights

When will there be fresh snow in Alt St. Johann?

Alt St. Johann Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (5,187ft)
Next Snow Expected14 September
Next Snow Amount-
Next 48 Hours-
Next 7 Days-

7-Day Snow Outlook for Alt St. Johann

 
Snowfall

 
Snow Line

Max 84°F
Min 50°F

Snow unlikely

Alt St. Johann Medium-Range (7-Day) Snow Forecast Detail

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

Max 66°F
Min 57°F

Valley temperatures from an overnight low of 57°F to daytime highs around 66°F

Temperature at BaseTemp at Base

Mon
31

Snow unlikely

Lt DrizzleFairLt DrizzleLt Drizzle

Light drizzle, fair, light drizzle later.

Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.

Max 69°F
Min 50°F

Valley temperatures from an overnight low of 50°F to daytime highs around 69°F

Temperature at BaseTemp at Base

Tue
01

Snow unlikely

ClearClearFairMixed

Clear sky, fair, clear spells later.

Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.

Max 70°F
Min 54°F

Valley temperatures from an overnight low of 54°F to daytime highs around 70°F

Temperature at BaseTemp at Base

Wed
02

Snow unlikely

FairFairCloudClear

Fair, cloudy, clear sky later.

Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.

Max 71°F
Min 53°F

Valley temperatures from an overnight low of 53°F to daytime highs around 71°F

Temperature at BaseTemp at Base

Thu
03

Snow unlikely

ClearClearMixedFair

Clear sky, clear spells, fair later.

Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.

Max 80°F
Min 56°F

Valley temperatures from an overnight low of 56°F to daytime highs around 80°F

Temperature at BaseTemp at Base

Fri
04

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.

Max 81°F
Min 66°F

Valley temperatures from an overnight low of 66°F to daytime highs around 81°F

Temperature at BaseTemp at Base

Sat
05

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.

Max 84°F
Min 65°F

Valley temperatures from an overnight low of 65°F to daytime highs around 84°F

Temperature at BaseTemp at Base

Sun
06

Snow unlikely

FairClearClearClear

Fair early, then clear sky later.

Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.

This Snow Forecast for Alt St. Johann, Switzerland gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Alt St. Johann, on any given trail or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Alt St. Johann Snow Forecast updated at 12:48 PDT, next update expected 18:00 PDT.

Snow Reliability

The snow reliability at Alt St. Johann is generally good, with average snow depths often reaching between 50 to 150 cm during peak season. For the latest snow conditions and updates, check J2Ski for accurate and timely information.